222 lines
8.8 KiB
Fortran
222 lines
8.8 KiB
Fortran
!--------------------------------------------------------------------------------------------------
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!> @author Luv Sharma, Max-Planck-Institut für Eisenforschung GmbH
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!> @author Pratheek Shanthraj, Max-Planck-Institut für Eisenforschung GmbH
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!> @brief material subroutine incorporating anisotropic brittle damage source mechanism
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!> @details to be done
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!--------------------------------------------------------------------------------------------------
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module source_damage_anisoBrittle
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use prec
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use IO
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use math
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use discretization
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use material
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use config
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use lattice
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use results
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implicit none
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private
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integer, dimension(:), allocatable :: &
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source_damage_anisoBrittle_offset, & !< which source is my current source mechanism?
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source_damage_anisoBrittle_instance !< instance of source mechanism
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type :: tParameters !< container type for internal constitutive parameters
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real(pReal) :: &
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sdot_0, &
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n
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real(pReal), dimension(:), allocatable :: &
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critDisp, &
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critLoad
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real(pReal), dimension(:,:,:,:), allocatable :: &
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cleavage_systems
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integer :: &
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sum_N_cl
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character(len=pStringLen), allocatable, dimension(:) :: &
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output
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end type tParameters
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type(tParameters), dimension(:), allocatable :: param !< containers of constitutive parameters (len Ninstance)
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public :: &
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source_damage_anisoBrittle_init, &
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source_damage_anisoBrittle_dotState, &
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source_damage_anisobrittle_getRateAndItsTangent, &
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source_damage_anisoBrittle_results
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contains
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!--------------------------------------------------------------------------------------------------
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!> @brief module initialization
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!> @details reads in material parameters, allocates arrays, and does sanity checks
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!--------------------------------------------------------------------------------------------------
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subroutine source_damage_anisoBrittle_init
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integer :: Ninstance,sourceOffset,NipcMyPhase,p
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integer, dimension(:), allocatable :: N_cl
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character(len=pStringLen) :: extmsg = ''
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write(6,'(/,a)') ' <<<+- source_'//SOURCE_DAMAGE_ANISOBRITTLE_LABEL//' init -+>>>'
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Ninstance = count(phase_source == SOURCE_DAMAGE_ANISOBRITTLE_ID)
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write(6,'(a16,1x,i5,/)') '# instances:',Ninstance; flush(6)
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allocate(source_damage_anisoBrittle_offset (size(config_phase)), source=0)
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allocate(source_damage_anisoBrittle_instance(size(config_phase)), source=0)
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allocate(param(Ninstance))
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do p = 1, size(config_phase)
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source_damage_anisoBrittle_instance(p) = count(phase_source(:,1:p) == SOURCE_DAMAGE_ANISOBRITTLE_ID)
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do sourceOffset = 1, phase_Nsources(p)
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if (phase_source(sourceOffset,p) == SOURCE_DAMAGE_ANISOBRITTLE_ID) then
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source_damage_anisoBrittle_offset(p) = sourceOffset
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exit
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endif
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enddo
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if (all(phase_source(:,p) /= SOURCE_DAMAGE_ANISOBRITTLE_ID)) cycle
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associate(prm => param(source_damage_anisoBrittle_instance(p)), &
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config => config_phase(p))
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prm%output = config%getStrings('(output)',defaultVal=emptyStringArray)
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N_cl = config%getInts('ncleavage',defaultVal=emptyIntArray)
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prm%sum_N_cl = sum(abs(N_cl))
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prm%n = config%getFloat('anisobrittle_ratesensitivity')
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prm%sdot_0 = config%getFloat('anisobrittle_sdot0')
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prm%critDisp = config%getFloats('anisobrittle_criticaldisplacement',requiredSize=size(N_cl))
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prm%critLoad = config%getFloats('anisobrittle_criticalload', requiredSize=size(N_cl))
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prm%cleavage_systems = lattice_SchmidMatrix_cleavage(N_cl,config%getString('lattice_structure'),&
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config%getFloat('c/a',defaultVal=0.0_pReal))
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! expand: family => system
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prm%critDisp = math_expand(prm%critDisp,N_cl)
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prm%critLoad = math_expand(prm%critLoad,N_cl)
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! sanity checks
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if (prm%n <= 0.0_pReal) extmsg = trim(extmsg)//' anisobrittle_n'
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if (prm%sdot_0 <= 0.0_pReal) extmsg = trim(extmsg)//' anisobrittle_sdot0'
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if (any(prm%critLoad < 0.0_pReal)) extmsg = trim(extmsg)//' anisobrittle_critLoad'
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if (any(prm%critDisp < 0.0_pReal)) extmsg = trim(extmsg)//' anisobrittle_critDisp'
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NipcMyPhase = count(material_phaseAt==p) * discretization_nIP
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call material_allocateState(sourceState(p)%p(sourceOffset),NipcMyPhase,1,1,0)
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sourceState(p)%p(sourceOffset)%atol = config%getFloat('anisobrittle_atol',defaultVal=1.0e-3_pReal)
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if(any(sourceState(p)%p(sourceOffset)%atol < 0.0_pReal)) extmsg = trim(extmsg)//' anisobrittle_atol'
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end associate
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!--------------------------------------------------------------------------------------------------
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! exit if any parameter is out of range
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if (extmsg /= '') call IO_error(211,ext_msg=trim(extmsg)//'('//SOURCE_DAMAGE_ANISOBRITTLE_LABEL//')')
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enddo
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end subroutine source_damage_anisoBrittle_init
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!--------------------------------------------------------------------------------------------------
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!> @brief calculates derived quantities from state
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!--------------------------------------------------------------------------------------------------
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subroutine source_damage_anisoBrittle_dotState(S, ipc, ip, el)
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integer, intent(in) :: &
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ipc, & !< component-ID of integration point
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ip, & !< integration point
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el !< element
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real(pReal), intent(in), dimension(3,3) :: &
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S
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integer :: &
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phase, &
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constituent, &
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sourceOffset, &
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damageOffset, &
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homog, &
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i
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real(pReal) :: &
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traction_d, traction_t, traction_n, traction_crit
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phase = material_phaseAt(ipc,el)
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constituent = material_phasememberAt(ipc,ip,el)
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sourceOffset = source_damage_anisoBrittle_offset(phase)
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homog = material_homogenizationAt(el)
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damageOffset = damageMapping(homog)%p(ip,el)
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associate(prm => param(source_damage_anisoBrittle_instance(phase)))
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sourceState(phase)%p(sourceOffset)%dotState(1,constituent) = 0.0_pReal
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do i = 1, prm%sum_N_cl
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traction_d = math_tensordot(S,prm%cleavage_systems(1:3,1:3,1,i))
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traction_t = math_tensordot(S,prm%cleavage_systems(1:3,1:3,2,i))
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traction_n = math_tensordot(S,prm%cleavage_systems(1:3,1:3,3,i))
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traction_crit = prm%critLoad(i)*damage(homog)%p(damageOffset)**2.0_pReal
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sourceState(phase)%p(sourceOffset)%dotState(1,constituent) &
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= sourceState(phase)%p(sourceOffset)%dotState(1,constituent) &
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+ prm%sdot_0 / prm%critDisp(i) &
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* ((max(0.0_pReal, abs(traction_d) - traction_crit)/traction_crit)**prm%n + &
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(max(0.0_pReal, abs(traction_t) - traction_crit)/traction_crit)**prm%n + &
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(max(0.0_pReal, abs(traction_n) - traction_crit)/traction_crit)**prm%n)
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enddo
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end associate
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end subroutine source_damage_anisoBrittle_dotState
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!--------------------------------------------------------------------------------------------------
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!> @brief returns local part of nonlocal damage driving force
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!--------------------------------------------------------------------------------------------------
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subroutine source_damage_anisobrittle_getRateAndItsTangent(localphiDot, dLocalphiDot_dPhi, phi, phase, constituent)
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integer, intent(in) :: &
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phase, &
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constituent
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real(pReal), intent(in) :: &
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phi
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real(pReal), intent(out) :: &
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localphiDot, &
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dLocalphiDot_dPhi
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integer :: &
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sourceOffset
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sourceOffset = source_damage_anisoBrittle_offset(phase)
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dLocalphiDot_dPhi = -sourceState(phase)%p(sourceOffset)%state(1,constituent)
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localphiDot = 1.0_pReal &
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+ dLocalphiDot_dPhi*phi
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end subroutine source_damage_anisoBrittle_getRateAndItsTangent
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!--------------------------------------------------------------------------------------------------
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!> @brief writes results to HDF5 output file
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!--------------------------------------------------------------------------------------------------
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subroutine source_damage_anisoBrittle_results(phase,group)
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integer, intent(in) :: phase
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character(len=*), intent(in) :: group
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integer :: o
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associate(prm => param(source_damage_anisoBrittle_instance(phase)), &
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stt => sourceState(phase)%p(source_damage_anisoBrittle_offset(phase))%state)
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outputsLoop: do o = 1,size(prm%output)
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select case(trim(prm%output(o)))
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case ('anisobrittle_drivingforce')
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call results_writeDataset(group,stt,'tbd','driving force','tbd')
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end select
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enddo outputsLoop
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end associate
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end subroutine source_damage_anisoBrittle_results
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end module source_damage_anisoBrittle
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